Bent for suspension-bridges



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E. E. RNYON.

' BENT POR SUSPENSION* BRIDGES.

Patented Sept. 3. 1889.

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E. E. RUNYON. BENT EOE SUSPENSION BRIDGES.

110.410,201. Patented sept. s, 1889.

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UNITEDV STATES' PATENT OFFICE? EDIVIN ELIJAH RUNYON, OF MOUNTAIN SPRING,TEXAS.

BENT FOR SUSPENSION-BRIDGES.

SPECIFICATION forming part of Letters Patent No. 410,201, datedSeptember 3, 1889. 4 Application tiled April l, 1889. Serial No.305,589. (No model.)

To LZZ whom it may concern.-

Beit Vknown that I, EDWIN ELIJAH RUN- YON, a citizen ot' the UnitedStates, residing at Mountain Spring, in the county of Cooke and State ofTexas, have invented certain new anduseful Improvements in Bents forSuspension-Bridges; and Ido declare the following to be a full, clear,and eXact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to -the lettersand figures of reference marked thereon, which form a part of thisspecification. Y

My invention relates to an improvement in bents for suspension-bridges,especially that class of bridge shown in my patent,No. 394,940;

and it consists in the construction and arrangement of parts more fullyhereinafter described, and detinitely pointed out in the claims.

The object of my invention is to provide a strong, durable,cheaply-manufactured, and easily-erected bent for suspension-bridges- Iattain this object by the construction illustrated in the accompanyingdrawings, wherein like letters of reference indicate correspondin gparts in the several views, and in which- Figure 1 is an elevation of myimproved bent, portions of which are shown as being broken away. Fig. 2is a detail view of a saddle. Fig. 3 is a detail of a bar andsaddleholder. Fig. 4L is a detail of one of the yokes. Fig. 5 is alongitudinal section of a bridge.

Fig. 6 is a detail of a clamp, and Fig. 7 is a detail of an anchor-pin.

In the drawings, A represents the masonry foundation, in which areembedded the anchor-pins B, provided with collars b and 'projecting endsh', which lit' i'n the hollow ends of the columns C and C', the formerbeing arranged in pairs at the ends of the bent and supporting the maincables on their upper ends.

To brace and rigidly hold the columns C in place,I extend an iron bar,as D, across their tops, which rests in a casting E, having acylindrical projection e on its under side, which fits in the top of thecolumns, and upwardlycxtending lugs e on its respective corners,betweenwhich the bar is placed, thus recess f2 in their ends, which tpartly around the column, the end of the bar fitting in the groove f andbeing bolted to the yoke by a bolt f3. To still more effectivelyhold thebar D in place, pins may be inserted through the same into holes in thecastings E.

G represents the saddle, which has a grooved upper face inwhich thecable rests, and downwardly-projecting iianges, as g, on its ends, whichpass by the sides of the bar D and rest on the casting E between thelugs e. this arrangement all side-play and longitudinal movement areprevented.

To give rigidity to the eut-ire structure and more securely unite theseveral parts, I eX- tend wire cables II and I-I from the yokes F downobliquely on both sides of the bent, around pins 7L, secured in thecollars of the anchor-pins. rlhe upper ends of these cables rest in thegrooves f of the yokes. To pre.` vent the outer columns from spreading,clasps I, formed of two pieces, with semicircular grooves on their innerfaces near their ends and edge grooves 'i on their outer ends, areplaced around the columns and secured together by a suitable boltpassing `through their centers between the columns, and a wire cable Kis stretched around the bentand rests in the grooves t' of the clasps.These brace-cables Il and K are formed of separate strands of wireplaced separately in position and then` twisted to give them the righttension. After they have been sufficiently twisted they are preventedfrom untwisting by having suitable tie-bolts inserted between thestrands and made fast to the bent.

I am aware that many minor changes in the construction and arrangementof the parts of my invention can be made and substituted for those shownand described without in the least departing from the nature andprinciple of my invention.

Having thus described my invention, what roo I claim as new, and desireto secure by Letters Patent, is

1. In a bridge-bent, the combination, with vertically-arranged columns,of a cross-bar dles G, having flanges g on their under sides, which fitover the bar and between the lugs on the casting, and the `yokes F,substantially as described. i A

4. The bridge-bent composed of a series of hollow columns united by Wirebraces and a cross-bar on the top of the central columns, substantiallyas described.

In testimony whereof l affix mysi gnature in presence of two Witnesses.

EDVIN ELIJAH RUNYON. Witnesses:

VJ. H. RAYZos, V. R. MADDOX.

